#include <stdio.h> 
void  fun (int x,int y ); 
int main() 
{ int x=5,y=3;  
fun(x,y); 
printf("%d,%d\n",x,y); 
return 0; 
} 
void  fun (int x,int y ) 
{ x=x+y; 
y=x-y; 
x=x-y; 
printf("%d,%d\n",x,y);   
}